The app is vey well designed, love it
Also what a funny name.
Download playlist from the share link from the YouTube app.
Direct download best audio quality from share link.
Clear search history option.
Include song metadata. (sometimes it's tricky to find the song in the Music app)
Where is the source code?
How the python implementation works?
Do you think include a audio conversion process or you want to stick to the WEBM and M4A strategy ?